BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -28
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WARNING: CPU: 0 PID: 136 at fs/btrfs/extent-tree.c:2158 btrfs_run_delayed_refs+0x408/0x47c fs/btrfs/extent-tree.c:2158
Modules linked in:
CPU: 0 PID: 136 Comm: kworker/u4:1 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : btrfs_run_delayed_refs+0x408/0x47c fs/btrfs/extent-tree.c:2158
lr : btrfs_run_delayed_refs+0x408/0x47c fs/btrfs/extent-tree.c:2158
sp : ffff80001d7677f0
x29: ffff80001d767800 x28: dfff800000000000 x27: 00000000001d0000
x26: 00000000ffffffe4 x25: ffff0000db09b000 x24: 1fffe0001b7db797
x23: ffff0000dbedbcb8 x22: 000000000000001d x21: 000000000000001d
x20: ffff0000cc94a000 x19: ffff0000dbedbc60 x18: 0000000000000001
x17: 0000000000000000 x16: ffff800011b54788 x15: 00000000ffffffff
x14: ffff0000c27a8000 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : 98574d4cd4c4e500
x8 : 98574d4cd4c4e500 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001d766f58 x4 : ffff800014c4fec0 x3 : ffff8000085597fc
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 btrfs_run_delayed_refs+0x408/0x47c fs/btrfs/extent-tree.c:2158
 flush_space+0x890/0xc94 fs/btrfs/space-info.c:660
 btrfs_async_reclaim_metadata_space+0x6c8/0x80c fs/btrfs/space-info.c:953
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 process_scheduled_works kernel/workqueue.c:2373 [inline]
 worker_thread+0xb88/0x1034 kernel/workqueue.c:2459
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
irq event stamp: 645356
hardirqs last  enabled at (645355): [<ffff80000832ea28>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (645356): [<ffff800011b4fe3c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (645344): [<ffff8000081b90b8>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (645344): [<ffff8000081b90b8>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (645323): [<ffff8000081b9750>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (645323): [<ffff8000081b9750>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (645323): [<ffff8000081b9750>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (645323): [<ffff8000081b9750>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
---[ end trace 31dd85bfa82400ed ]---
BTRFS: error (device loop0) in btrfs_run_delayed_refs:2158: errno=-28 No space left